| 1 |
- {"code":"import { __spreadArrays } from \"tslib\";\r\n/**\r\n * @desc 解决浮动运算问题，避免小数点后产生多位数和计算精度损失。\r\n * 问题示例：2.3 + 2.4 = 4.699999999999999，1.0 - 0.9 = 0.09999999999999998\r\n */\r\n/**\r\n * 把错误的数据转正\r\n * strip(0.09999999999999998)=0.1\r\n */\r\nfunction strip(num, precision) {\r\n if (precision === void 0) { precision = 15; }\r\n return +parseFloat(Number(num).toPrecision(precision));\r\n}\r\n/**\r\n * Return digits length of a number\r\n * @param {*number} num Input number\r\n */\r\nfunction digitLength(num) {\r\n // Get digit length of e\r\n var eSplit = num.toString().split(/[eE]/);\r\n var len = (eSplit[0].split('.')[1] || '').length - +(eSplit[1] || 0);\r\n return len > 0 ? len : 0;\r\n}\r\n/**\r\n * 把小数转成整数，支持科学计数法。如果是小数则放大成整数\r\n * @param {*number} num 输入数\r\n */\r\nfunction float2Fixed(num) {\r\n if (num.toString().indexOf('e') === -1) {\r\n return Number(num.toString().replace('.', ''));\r\n }\r\n var dLen = digitLength(num);\r\n return dLen > 0 ? strip(Number(num) * Math.pow(10, dLen)) : Number(num);\r\n}\r\n/**\r\n * 检测数字是否越界，如果越界给出提示\r\n * @param {*number} num 输入数\r\n */\r\nfunction checkBoundary(num) {\r\n if (_boundaryCheckingState) {\r\n if (num > Number.MAX_SAFE_INTEGER || num < Number.MIN_SAFE_INTEGER) {\r\n console.warn(num + \" is beyond boundary when transfer to integer, the results may not be accurate\");\r\n }\r\n }\r\n}\r\n/**\r\n * 精确乘法\r\n */\r\nfunction times(num1, num2) {\r\n var others = [];\r\n for (var _i = 2; _i < arguments.length; _i++) {\r\n others[_i - 2] = arguments[_i];\r\n }\r\n if (others.length > 0) {\r\n return times.apply(void 0, __spreadArrays([times(num1, num2), others[0]], others.slice(1)));\r\n }\r\n var num1Changed = float2Fixed(num1);\r\n var num2Changed = float2Fixed(num2);\r\n var baseNum = digitLength(num1) + digitLength(num2);\r\n var leftValue = num1Changed * num2Changed;\r\n checkBoundary(leftValue);\r\n return leftValue / Math.pow(10, baseNum);\r\n}\r\n/**\r\n * 精确加法\r\n */\r\nfunction plus(num1, num2) {\r\n var others = [];\r\n for (var _i = 2; _i < arguments.length; _i++) {\r\n others[_i - 2] = arguments[_i];\r\n }\r\n if (others.length > 0) {\r\n return plus.apply(void 0, __spreadArrays([plus(num1, num2), others[0]], others.slice(1)));\r\n }\r\n var baseNum = Math.pow(10, Math.max(digitLength(num1), digitLength(num2)));\r\n return (times(num1, baseNum) + times(num2, baseNum)) / baseNum;\r\n}\r\n/**\r\n * 精确减法\r\n */\r\nfunction minus(num1, num2) {\r\n var others = [];\r\n for (var _i = 2; _i < arguments.length; _i++) {\r\n others[_i - 2] = arguments[_i];\r\n }\r\n if (others.length > 0) {\r\n return minus.apply(void 0, __spreadArrays([minus(num1, num2), others[0]], others.slice(1)));\r\n }\r\n var baseNum = Math.pow(10, Math.max(digitLength(num1), digitLength(num2)));\r\n return (times(num1, baseNum) - times(num2, baseNum)) / baseNum;\r\n}\r\n/**\r\n * 精确除法\r\n */\r\nfunction divide(num1, num2) {\r\n var others = [];\r\n for (var _i = 2; _i < arguments.length; _i++) {\r\n others[_i - 2] = arguments[_i];\r\n }\r\n if (others.length > 0) {\r\n return divide.apply(void 0, __spreadArrays([divide(num1, num2), others[0]], others.slice(1)));\r\n }\r\n var num1Changed = float2Fixed(num1);\r\n var num2Changed = float2Fixed(num2);\r\n checkBoundary(num1Changed);\r\n checkBoundary(num2Changed);\r\n // fix: 类似 10 ** -4 为 0.00009999999999999999，strip 修正\r\n return times(num1Changed / num2Changed, strip(Math.pow(10, digitLength(num2) - digitLength(num1))));\r\n}\r\n/**\r\n * 四舍五入\r\n */\r\nfunction round(num, ratio) {\r\n var base = Math.pow(10, ratio);\r\n return divide(Math.round(times(num, base)), base);\r\n}\r\nvar _boundaryCheckingState = true;\r\n/**\r\n * 是否进行边界检查，默认开启\r\n * @param flag 标记开关，true 为开启，false 为关闭，默认为 true\r\n */\r\nfunction enableBoundaryChecking(flag) {\r\n if (flag === void 0) { flag = true; }\r\n _boundaryCheckingState = flag;\r\n}\r\nexport { strip, plus, minus, times, divide, round, digitLength, float2Fixed, enableBoundaryChecking };\r\nexport default {\r\n strip: strip,\r\n plus: plus,\r\n minus: minus,\r\n times: times,\r\n divide: divide,\r\n round: round,\r\n digitLength: digitLength,\r\n float2Fixed: float2Fixed,\r\n enableBoundaryChecking: enableBoundaryChecking,\r\n};\r\n//# sourceMappingURL=index.js.map","map":{"version":3,"file":"index.js","sourceRoot":"","sources":["src/index.ts"],"names":[],"mappings":";AACA;;;GAGG;AAEH;;;GAGG;AACH,SAAS,KAAK,CAAC,GAAY,EAAE,SAAc;IAAd,0BAAA,EAAA,cAAc;IACzC,OAAO,CAAC,UAAU,CAAC,MAAM,CAAC,GAAG,CAAC,CAAC,WAAW,CAAC,SAAS,CAAC,CAAC,CAAC;AACzD,CAAC;AAED;;;GAGG;AACH,SAAS,WAAW,CAAC,GAAY;IAC/B,wBAAwB;IACxB,IAAM,MAAM,GAAG,GAAG,CAAC,QAAQ,EAAE,CAAC,KAAK,CAAC,MAAM,CAAC,CAAC;IAC5C,IAAM,GAAG,GAAG,CAAC,MAAM,CAAC,CAAC,CAAC,CAAC,KAAK,CAAC,GAAG,CAAC,CAAC,CAAC,CAAC,IAAI,EAAE,CAAC,CAAC,MAAM,GAAG,CAAC,CAAC,MAAM,CAAC,CAAC,CAAC,IAAI,CAAC,CAAC,CAAC;IACvE,OAAO,GAAG,GAAG,CAAC,CAAC,CAAC,CAAC,GAAG,CAAC,CAAC,CAAC,CAAC,CAAC;AAC3B,CAAC;AAED;;;GAGG;AACH,SAAS,WAAW,CAAC,GAAY;IAC/B,IAAI,GAAG,CAAC,QAAQ,EAAE,CAAC,OAAO,CAAC,GAAG,CAAC,KAAK,CAAC,CAAC,EAAE;QACtC,OAAO,MAAM,CAAC,GAAG,CAAC,QAAQ,EAAE,CAAC,OAAO,CAAC,GAAG,EAAE,EAAE,CAAC,CAAC,CAAC;KAChD;IACD,IAAM,IAAI,GAAG,WAAW,CAAC,GAAG,CAAC,CAAC;IAC9B,OAAO,IAAI,GAAG,CAAC,CAAC,CAAC,CAAC,KAAK,CAAC,MAAM,CAAC,GAAG,CAAC,GAAG,IAAI,CAAC,GAAG,CAAC,EAAE,EAAE,IAAI,CAAC,CAAC,CAAC,CAAC,CAAC,MAAM,CAAC,GAAG,CAAC,CAAC;AAC1E,CAAC;AAED;;;GAGG;AACH,SAAS,aAAa,CAAC,GAAW;IAChC,IAAI,sBAAsB,EAAE;QAC1B,IAAI,GAAG,GAAG,MAAM,CAAC,gBAAgB,IAAI,GAAG,GAAG,MAAM,CAAC,gBAAgB,EAAE;YAClE,OAAO,CAAC,IAAI,CAAI,GAAG,kFAA+E,CAAC,CAAC;SACrG;KACF;AACH,CAAC;AAED;;GAEG;AACH,SAAS,KAAK,CAAC,IAAa,EAAE,IAAa;IAAE,gBAAoB;SAApB,UAAoB,EAApB,qBAAoB,EAApB,IAAoB;QAApB,+BAAoB;;IAC/D,IAAI,MAAM,CAAC,MAAM,GAAG,CAAC,EAAE;QACrB,OAAO,KAAK,+BAAC,KAAK,CAAC,IAAI,EAAE,IAAI,CAAC,EAAE,MAAM,CAAC,CAAC,CAAC,GAAK,MAAM,CAAC,KAAK,CAAC,CAAC,CAAC,GAAE;KAChE;IACD,IAAM,WAAW,GAAG,WAAW,CAAC,IAAI,CAAC,CAAC;IACtC,IAAM,WAAW,GAAG,WAAW,CAAC,IAAI,CAAC,CAAC;IACtC,IAAM,OAAO,GAAG,WAAW,CAAC,IAAI,CAAC,GAAG,WAAW,CAAC,IAAI,CAAC,CAAC;IACtD,IAAM,SAAS,GAAG,WAAW,GAAG,WAAW,CAAC;IAE5C,aAAa,CAAC,SAAS,CAAC,CAAC;IAEzB,OAAO,SAAS,GAAG,IAAI,CAAC,GAAG,CAAC,EAAE,EAAE,OAAO,CAAC,CAAC;AAC3C,CAAC;AAED;;GAEG;AACH,SAAS,IAAI,CAAC,IAAa,EAAE,IAAa;IAAE,gBAAoB;SAApB,UAAoB,EAApB,qBAAoB,EAApB,IAAoB;QAApB,+BAAoB;;IAC9D,IAAI,MAAM,CAAC,MAAM,GAAG,CAAC,EAAE;QACrB,OAAO,IAAI,+BAAC,IAAI,CAAC,IAAI,EAAE,IAAI,CAAC,EAAE,MAAM,CAAC,CAAC,CAAC,GAAK,MAAM,CAAC,KAAK,CAAC,CAAC,CAAC,GAAE;KAC9D;IACD,IAAM,OAAO,GAAG,IAAI,CAAC,GAAG,CAAC,EAAE,EAAE,IAAI,CAAC,GAAG,CAAC,WAAW,CAAC,IAAI,CAAC,EAAE,WAAW,CAAC,IAAI,CAAC,CAAC,CAAC,CAAC;IAC7E,OAAO,CAAC,KAAK,CAAC,IAAI,EAAE,OAAO,CAAC,GAAG,KAAK,CAAC,IAAI,EAAE,OAAO,CAAC,CAAC,GAAG,OAAO,CAAC;AACjE,CAAC;AAED;;GAEG;AACH,SAAS,KAAK,CAAC,IAAa,EAAE,IAAa;IAAE,gBAAoB;SAApB,UAAoB,EAApB,qBAAoB,EAApB,IAAoB;QAApB,+BAAoB;;IAC/D,IAAI,MAAM,CAAC,MAAM,GAAG,CAAC,EAAE;QACrB,OAAO,KAAK,+BAAC,KAAK,CAAC,IAAI,EAAE,IAAI,CAAC,EAAE,MAAM,CAAC,CAAC,CAAC,GAAK,MAAM,CAAC,KAAK,CAAC,CAAC,CAAC,GAAE;KAChE;IACD,IAAM,OAAO,GAAG,IAAI,CAAC,GAAG,CAAC,EAAE,EAAE,IAAI,CAAC,GAAG,CAAC,WAAW,CAAC,IAAI,CAAC,EAAE,WAAW,CAAC,IAAI,CAAC,CAAC,CAAC,CAAC;IAC7E,OAAO,CAAC,KAAK,CAAC,IAAI,EAAE,OAAO,CAAC,GAAG,KAAK,CAAC,IAAI,EAAE,OAAO,CAAC,CAAC,GAAG,OAAO,CAAC;AACjE,CAAC;AAED;;GAEG;AACH,SAAS,MAAM,CAAC,IAAa,EAAE,IAAa;IAAE,gBAAoB;SAApB,UAAoB,EAApB,qBAAoB,EAApB,IAAoB;QAApB,+BAAoB;;IAChE,IAAI,MAAM,CAAC,MAAM,GAAG,CAAC,EAAE;QACrB,OAAO,MAAM,+BAAC,MAAM,CAAC,IAAI,EAAE,IAAI,CAAC,EAAE,MAAM,CAAC,CAAC,CAAC,GAAK,MAAM,CAAC,KAAK,CAAC,CAAC,CAAC,GAAE;KAClE;IACD,IAAM,WAAW,GAAG,WAAW,CAAC,IAAI,CAAC,CAAC;IACtC,IAAM,WAAW,GAAG,WAAW,CAAC,IAAI,CAAC,CAAC;IACtC,aAAa,CAAC,WAAW,CAAC,CAAC;IAC3B,aAAa,CAAC,WAAW,CAAC,CAAC;IAC3B,qDAAqD;IACrD,OAAO,KAAK,CAAC,WAAW,GAAG,WAAW,EAAE,KAAK,CAAC,IAAI,CAAC,GAAG,CAAC,EAAE,EAAE,WAAW,CAAC,IAAI,CAAC,GAAG,WAAW,CAAC,IAAI,CAAC,CAAC,CAAC,CAAC,CAAC;AACtG,CAAC;AAED;;GAEG;AACH,SAAS,KAAK,CAAC,GAAY,EAAE,KAAa;IACxC,IAAM,IAAI,GAAG,IAAI,CAAC,GAAG,CAAC,EAAE,EAAE,KAAK,CAAC,CAAC;IACjC,OAAO,MAAM,CAAC,IAAI,CAAC,KAAK,CAAC,KAAK,CAAC,GAAG,EAAE,IAAI,CAAC,CAAC,EAAE,IAAI,CAAC,CAAC;AACpD,CAAC;AAED,IAAI,sBAAsB,GAAG,IAAI,CAAC;AAClC;;;GAGG;AACH,SAAS,sBAAsB,CAAC,IAAW;IAAX,qBAAA,EAAA,WAAW;IACzC,sBAAsB,GAAG,IAAI,CAAC;AAChC,CAAC;AACD,OAAO,EAAE,KAAK,EAAE,IAAI,EAAE,KAAK,EAAE,KAAK,EAAE,MAAM,EAAE,KAAK,EAAE,WAAW,EAAE,WAAW,EAAE,sBAAsB,EAAE,CAAC;AACtG,eAAe;IACb,KAAK,OAAA;IACL,IAAI,MAAA;IACJ,KAAK,OAAA;IACL,KAAK,OAAA;IACL,MAAM,QAAA;IACN,KAAK,OAAA;IACL,WAAW,aAAA;IACX,WAAW,aAAA;IACX,sBAAsB,wBAAA;CACvB,CAAC"}}
|
